I am not sure whether I should laugh or cry... This randomises your MAC and hostname and then prevents outgoing connections. Unless you think the NSA is running

I am not sure whether I should laugh or cry... This randomises your MAC and hostname and then prevents outgoing connections. Unless you think the NSA is running nmap on every public WiFi it does not even do what is printed on the tin. I am trying to imagine what threat model this is trying to address and why this particular set of options was chosen, as I can't see them being particularly effective and the general annoyances of step three in the process will tend to have this script nuked by the user within 72 hours.